20102872896 has 336 divisors, whose sum is σ = 63852332544. Its totient is φ = 6255760896.

The previous prime is 20102872871. The next prime is 20102872931. The reversal of 20102872896 is 69827820102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 15380275 + ... + 15381581.

It is an arithmetic number, because the mean of its divisors is an integer number (190036704).

Almost surely, 2^20102872896 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20102872896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31926166272).

20102872896 is an abundant number, since it is smaller than the sum of its proper divisors (43749459648).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20102872896 is a wasteful number, since it uses less digits than its factorization.

20102872896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1400 (or 1378 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The spelling of 20102872896 in words is "twenty billion, one hundred two million, eight hundred seventy-two thousand, eight hundred ninety-six".